A light diffuser and a method for assembling the same

公开(公告)号：
AU2021238633A1
公开(公告)日：
2022-09-29
申请号：
AU2021238633
申请日：
2021-03-17
授权日：
-
受理局：
澳大利亚
专利类型：
发明申请
简单法律状态：
审中
法律状态/事件：
公开
IPC分类号：
F21V8/00 | A61N5/06 | G02B5/02
战略新兴产业分类：
电子核心产业
国民经济行业分类号：
C4350 | C3874 | C4090 | C3879
当前申请(专利权)人：
GPX MEDICAL AB | NEOLA MEDICAL AB
原始申请(专利权)人：
GPX MEDICAL AB | NEOLA MEDICAL AB
当前申请(专利权)人地址：
Ideon Gateway, vån 9, Scheelevägen 27 223 63 Lund Sweden
工商统一社会信用代码：
-
工商登记状态：
-
工商注册地址：
-
工商成立日期：
2016-01-01
工商企业类型：
-
发明人：
BERGSTEN, SARA | LEANDER, DENNIS
代理机构：
HALFORDS IP
代理人：
-
摘要：
A device and method for providing diffuse emission of light through a flat surface, which includes a flat light guide having two larger flat surfaces on opposite sides and side surfaces, wherein one of the two larger flat surfaces being a light emitting surface and the other surface being a back surface, a connector for coupling light into said flat light guide, and a diffusing layer arranged in contact with at least one of said two larger flat surfaces of said flat light guide.
技术问题语段：
-
技术功效语段：
-
权利要求：
CLAIMS 1. A device for providing diffuse emission of light through a flat surface, the device comprising: a flat light guide having two larger flat surfaces on opposite sides and side surfaces, wherein one of the two larger flat surfaces being a light emitting surface and the other surface being a back surface; a connector for coupling light into said flat light guide; and a diffusing layer arranged in contact with at least one of said two larger flat surfaces of said flat light guide. 2. The device of claim 1, wherein a reflective material is arranged on all sides of the flat light guide apart from said light emitting surface. 3. The device of claim 2, wherein said reflective material reflects light either through specular reflection or through diffuse reflection. 4. The device of any of claims 2 or 3, wherein the diffusing layer is arranged between said back surface and said reflective material. 5. The device of any one of claims 1 to 4, wherein the diffusing layer has a refractive index higher than said flat light guide. 6. The device of any one of claims 1 to 5, wherein said diffusing layer is printed on one of said two larger flat surfaces of said flat light guide. 7. The device of any one of claims 1 to 6, wherein said diffusing layer is arranged as a pattern on one of said two larger flat surfaces of said flat light guide to provide a plurality of areas of diffuse reflection. 8. The device of claim 7, wherein said pattern is printed as a plurality of areas of various widths and space between. 9. The device of any one of claims 1 to 6, wherein said diffusing layer comprises structures, such as micro structures, to diffuse the light, or wherein the diffusing layer is a structural writing on at least one of said two larger surfaces of said flat light guide. 10. The device of any one of claims 7 or 8, wherein said diffusing layer is arranged as said pattern on said back surface of said flat light guide and said reflective layer is reflecting light of areas of said back surface not covered by said pattern. i. The device of any one of claims 1 to 10, wherein said light emitting surface is covered by a first layer having a lower refractive index than said flat light guide. 124 The device of claim 11, wherein said layer covering said light emitting surface has a refractive index close to a material, such as human skin, to which light should be coupled. 13. The device of any one of claims 1 to 12, wherein said diffusing layer is arranged on said light emitting surface, or is arranged in said light guide, and wherein a second layer is arranged on said back surface and said side surfaces, said second layer has a lower refractive index than said flat light guide. 14. The device of any of claims 1 to 12, wherein said diffusing layer is arranged on said back surface and wherein a second layer is arranged on top of said diffusing layer and on said side surfaces has a lower refractive index than said flat light guide 15. The device of claim 14, wherein said diffusing layer is arranged on said back surface and said second layer is arranged between said diffusing layer and said reflecting layer. 16. The device of any one of claims 1 to 15, wherein an initial area closest to said connector is not covered by said diffusing material. 11. A method of manufacturing a device for providing diffuse emission of light through a flat surface, comprising: providing a flat light guide having two larger flat surfaces on opposite sides and side surfaces, wherein one of the two larger flat surfaces being a light emitting surface and the other surface being a back surface; arranging a connector for coupling light into said flat light guide; and arranging a diffusing layer in contact with at least one of said two larger flat surfaces of said flat light guide.
技术领域：
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背景技术：
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发明内容：
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具体实施方式：
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